Liquid gun



lMan:h.26, 1929. c. F. LEFEVER LIQUID GUN Filed Deo. 5, 1927 w u n 3 joof M 6 w 6 Vv M 2 WM 7 7^ a, 3M, 2 A

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Application filed December 5, i927, Serial No. 237,855,

The invention relates to liquid discharging guns and refersmoreparticularly to that type known as ma azine guns or repeaters.objects the discharge rllhe invention as for one of its provision of agun which will the same amount of liquid each time it is operated. Theinvention has for another of its objects to so construct the gun thatits parts rihe invention ma be readily assembled. further consists inthe novel Figure 3 vation Figure 4 is is a similar view, partly in eleacross section on the line 4 4 of Figure 2; r

Figure 5 is a perspective view of a portion of the ber closure of thegun frame mem- Figures 6 and 7 are sectional views at right angles toeach other, showing the means for position.

securing the closure in closed yThe gun illustrated in the presentinstance is a liquid pistol in which 1 is a frame member formed of asheet metal stampingy having complementary sections abutting againsteach other and forming a casing and comprising a trigger guard 2, thecasing the false barrel 3, the handle 4 and the closure 5 for the rearend of the false barrel and the upper portion of the rear side of thehandle. This closure 1s connected to the handle by the adapted to besecured to the pivot 6 and is alse barrel by the latch mechanism 7. Thismechanism comprises the transversely movable bolt 8 which is slidablymounted in the ear 9 upon the closure and the ear 10 upon the bracket11, which latter is secured to the 12 is a coil spring encircling theclosure.

bolt and abutting the ear 10 and the transverse arms 13 upon the bolt.

The false barrel at one side of its rear end portion has the opening 14for engagement with the arms and the slot 15 extends from the rear endof the false barrel to the opening, this slot having of the bolt.

a width suilicient for the passage 16 is an assembly insertable into andre. 55 movable from the frame member when the closure 5 is in openposition. This assembly, in fact, comprises two units. 011e .unit isformed of the liquid reservoir 17, which is engageabl'e in the falsebarrel 3, the disdo char e chamber 18 within the front lower portion ofthe reservoir 17 and the trigger 19 which depends from the rear endportion of the reservoir and is adapted to extend into the space .formedby the trigger guard 2. The reservoir 17 has at its rear' end the fillerneck 20 through which the liquid, such as water, may be poured, thisneck being closed as by means of the cork 21. The discharge chamber hasits front end pro- T0 vided with the restricted discharge opening 22 andits rear end opening into the reservoir, the frame member 1 beingprovided with an opening 23 to ermit water being discharged throughl t erestricted opening 22 75 from the pistol.

The second unit of the assembly comprises the plunger 24 within thedischarge chamber 18 and the plunger rod 25 extending rearwardly throughthe reservoir 17 and adapted S0 to abut at its rear end the closure 5.This second unit also includes the closure 26 surrounding the rod andadapted to tightly close the opening in the rear end of the reservoirthrough which the rod passes, ythe collar 27 encirclin the rod near itsrear end and the coil spring 28 encircling the rod and abutting theclosure 26 and the collar 27. 29 is an enlargement upon the rod forengaging the closure and 30 is a pin extending through 90 the rod andenga 'ng the collar 27 or holding the parts rom disengarement. Theclosure 26 has the cylindrical fiaange 26' surrounding the rod andpreventing the liquid from escaping along the rod. The plunger 24 isslidably mounted upon the front end of the rod and has a limitedlongitudinal movement relative thereto, the forward movement beinglimited by the turned collar 31 and the rearward movement being limitedby the shoulder 32. The front end of this rod has a passage for liquidfrom the reservoir to the discharge chamber in advance of the plunger,this passage including the transverse passageway 33 and the axialpassageway 34 in105 the rod and connecting into each other.

With this construction the plunger and plunger rod unit is first securedto the reservoir and discharge chamber unit with the plunger located inthe discharge chamber, the rod extending rearwardly through thereservoir and the closure upon the rod tightly fitting the flangesurrounding the opening upon the reservoir through 'which the rod.passes. Liquid, such as Water, is then poured through the iiller neck ofthe reservoir to fill the latter after which the cork .is inserted intothe filler neck. This unit assembly is then inserted into theframemember and the frame member closure is locked in closed position,at which time the pistol is ready for use. By pulling the triggerrearwardly any liquid which may .have entered the discharge chamber inadvance of the plunger rod will be forced through the restricted openingin the front end of the discharge chamber. Then upon relieving thepressure exerted u on the trigger the coil spring encircling t erear endportion of the plunger rod will force the reservoir and dischargechamber unit forwardly, at which time the plunger moves forwardlyrelative to the plunger rod. to uncover the passage in the plunger rodand allow liquid to be drawn from the reservoir into the dischargechamber in advance of the plunger. Then upon again pulling the trigger,the liquid is forced through the discharge opening, the plunger duringthe initial rearward movement of the trigger having been moved back uponthe plunger rod to close the passage therein. The construction is suchthat substantially the same amount of liquid is drawn into anddischarged from the discharge chamberA in advance of the plunger, eachtime the reservoir and discharge chamber unit is reciprocated.

What I claim as my invention is:

1. In a liquid gun, the combination with a liquid reservoir, of adischarge chamber, a plunger within said chamber, said plunger andchamber being relatively movable to force from said chamber liquid inadvance of said plunger, and a plunger rod having a passage from saidreservoir to saidY chamber in advance of said plunger, said plunger and]rod being relatively'movable to control the passa e.

2. n a liquid gun, the combination with a liquid reservoir of a chamberhaving its front end provided with a restricted discharge opening andits rear end openin into said reservoir, a plunger within said c amber,said plunger and chamber being relatively movable to force from saidchamber liquid in advance of said plunger, a plunger rod extendingthrough the'rear end of said chamber and provided at its front end witha passage for the liquid from said reservoir to said chamber in advanceof said plunger, said plunger being movable longitudinally of said rodto control the passage.

3. In a liquid gun, the combination with a arcanes casing, of a unitcarried by said casing and chamber the liquid in advance of saidplunger.

'4. In a liquid gun, the combination with a casing, of a unit movablerelative thereto, said unit including a reservoir and a dischargechamber, a plunger within said chamber, and a plunger rod stationaryrelative to said casing and providing a passa e for the liquid from saidreservolr to sai chamber in advance of said plunger, saidv plungerhaving a limited longitudinal movement relative to said rod to controlthe passacre and to force from said chamber liquid in a Vance of saidplunger upon movement of said'unit.

5. In a liquid gun, the combination with a casing, of an assemblyinsertable into and removable from said casing, said assembly includinga reservoir, and a discharge chamber formin a unit, a plunger withinsaid chamber and a plunger rod extending through said reservoir andconnected to said plunger, said plunger and rod being removable fromsaid unit.

6. In a liquid gun, the combination with a l member forming a casing andaA trigger guard, sa1d caslng includln a movable closure at the rear endof sai member, of

a unit assembly insertable through the rear` 'able from said'rstmentioned unit and including a plunger within said chamber, a plungerrod connected to said plunger and extending rearwardly through saidreservoir and adapted to abut the rear end of said casing, a closure forthe opening in said reservoir through which said` rod extends, a coilspring encircling said rod in rear of said closure, anda collar uponsaid rod for engaging the rear end of said spring.

8. In a liquid gun, the combination with a casing having a movableclosure, of an assemb y slidably mounted in said casing including asecond y casing having a portion constituting a reservoir for a liquidand having another portion forming a discharge chamber, and means foractuating said a'ssembly to discharge the liquid in said chamber, saidassembly being insertable in and removable from said Erst mentionedcasing through said `closure as a unit.

9. In a liquid gun, the combination With a casing, o a reservoir and adischarge chamber associated with said casing, a rod adapted to extendinto said chamber having a passage therein establishing communicationbetween said reservoir and chamber, and a 'plunger arranged upon saidrod operable to discharge fluid from said chamber and to control the iowof Huid through said passage.

10. In a .liquid gun, the combination with a casino', of a dischargechamber sli'dably mounted Within said casing, a reservoir communicatingwith said chamber and a plunger arranged within and movable rel- 20ative to said chamber operable to discharge liquid therefrom and tocontrol communication between the reservoir and chamber.

In testimony whereofI afiix my signature.

CHARLES F. LEFEVRE.

